docs: def get_paths_data(self):
          """Get data for each paths in the swagger specification.
  
          Get also the list of operationId.
          """
          for path, path_spec in self.specification['paths'].items():
              path = u'{0}{1}'.format(self.base_path, path)
              self.paths[path] = {}
  
              # Add path-level parameters
              default_parameters = {}
              if 'parameters' in path_spec:
                  self._add_parameters(default_parameters, path_spec['parameters'])
  
              for http_method in path_spec.keys():
                  if http_method not in self._HTTP_VERBS:
                      continue
  
                  self.paths[path][http_method] = {}
  
                  # Add to operation list
                  action = path_spec[http_method]
                  tag = action['tags'][0] if 'tags' in action.keys() and action['tags'] else None
                  if 'operationId' in action.keys():
                      self.operation[action['operationId']] = (path, http_method, tag)
                  else:
                      # Note: the encoding chosen below isn't very important in this
                      #       case; what matters is a byte string that is unique.
                      #       URL paths and http methods should encode to UTF-8 safely.
                      h = hashlib.sha256()
                      h.update(("{0}|{1}".format(http_method, path)).encode('utf-8'))
                      self.generated_operation[h.hexdigest()] = (path, http_method, tag)
  
                  # Get parameters
                  self.paths[path][http_method]['parameters'] = default_parameters.copy()
                  if 'parameters' in action.keys():
                      self._add_parameters(self.paths[path][http_method]['parameters'], action['parameters'])
  
                  # Get responses
                  self.paths[path][http_method]['responses'] = action['responses']
  
                  # Get mime types for this action
                  if 'consumes' in action.keys():
                      self.paths[path][http_method]['consumes'] = action['consumes']